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Article History

Received: 29 September 2021

Accepted: 23 January 2022

First Online: 5 February 2022

Declarations

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: Not applicable.

: Not applicable.

: The authors take full responsibility for the contents of this article, and confirm that there are no conflicts of interests associated with this publication. The employment affiliations of all authors are presented on the cover page. This review article was not prepared on any request and has not been supported financially. The views and opinions expressed in the paper are those of the authors. The authors have no relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript. This includes employment, consultancies, honoraria, stock ownership or options, expert testimony, grants or patents received or pending, or royalties.